Spacer and tie in continuous strip fro concrete construction.



C. A. HANSON.

SPACER AND TIE IN CONTINUOUS STRIP FOR CONCRETE CONSTRUCTION.

Patented Feb. 4, 1919.

APPLICATION FILED MAY25| I918.

INL

use.

CHARLES A. HANSON, OF CHICAGO, ILLINOIS.

SPACER AND TIE IN CONTINUOUS STRIP FOR CONCRETE CONSTRUCTION.

Application filed May 25, 1918.

To all whom it may concern:

Be it known that I, Crnxnnns A. HANSON, a citizen of the United States,and a resident of the city of Chicago, county of Cook, and State ofIllinois, have invented certain new and useful Improvements in Spacersand Ties in Continuous Strips for Concrete Construction, of which thefollowing is a specification.

My invention relates to the provision of a rod spacing and tying device,peculiarly applicable for use in Connection with the as sembly ofreinforcing means for concrete construction.

It is now the general and approved practice to reinforce concreteconstruction with a series of rods, straight, twisted or otherwiseformed to present a good holding surface to the inclosing concrete. Thepresent universal practice, so far as I am aware, is to secure theserods in position for receiving the concrete by means of twisting wiresabout them. It is obvious that the strength of the reinforcement and theultimate strength of the concrete construction is dependent upon theuniformity or regularity with which the spacing of these rods is carriedout, and this is now recognized as the specification for such structuresincludes the particular spacing of the reinforcing rods. With thepresent method. however, of securing the rods together by twisting wiresabout them the resulting spacing of the rods is entirely dependent uponboth the care and skill of the operative who does the erecting. With theuse of my improved spacer and tie it is quite impossible for theoperative to use any discretion in the matter and nowhere nearly thesame degree of skill or time is necessary in assembling thereinforcement.

The principal object of my present in vention is the provision of asimple and effective means for securing the uniform spacing ofreinforcing rods which will provide means for securing said rods to thespacer and will also serve to effect the positioning of the reinforcingstructure within and anchoring it to the surrounding concrete, and theprovision of a rod spacer and tie that may be made in a continuous stripin order that it may be cut to the desired lengths for It will beunderstood that the tie members of the strips may be placed diversdistances apart on difl erent strips, and in the employment of myinvention several Specification of Letters Patent.

Patented Feb. 1919.

Serial No. 236,493.

spools of the strips may be used each as needed. for the differentspacing of the rods. A further object of my invention is the provisionof arod spa ing and tying strip that is so constructed that when in usewill pro vide a substantially flat structure of con sidcrable rigidityand capable of consider able rough usage without being distorted ormoved out of position.

I prefer to accomplish the divers objects of my invention by the meansand in the manner hereinafter more fully explained, reference being nowhad to the accompanying drawings which form a part of thisspecification, in which Figure 1 is a plan of a fragmental portion of apanel showing my invention applied to secure the spacing and positioningof the reinforcing rods of the structure.

Fig. 2 is a plan of a short section of my improved spacer and tiestrip.-

Fig. 3 is an edge view thereof showing the manner of spacing and tyingthe reinforcing rods thereto.

Referring to the drawings, in which similar reference characters areemployed to designate the same parts throughout the views, it will beseen my invention preferably comprises a strip or ribbon 5 of flat metalof suitable thickness, that has a plurality of slits 6 cut in from theopposite longitudinal edges thereof, at substantially right-angles tosaid edges. Coutinuations 7 of these slits extend at right-anglesthereto and parallel to the longitudinal edges of the strip to providesubstantially parallel, oppositely facing tongues 8 that are adapted tobe bent around the reinforcing rods 9, substantially in the mannerillustrated in Figs. 1 and 3 of the drawings, which illustr tions showthe ends of the tongues extended beyond the plane of the strips and rodsthereby securing the positioning of the reinforcing structure within andanchoring it to the surrounding concrete. In making these slits in themetal ribbon, I prefer to have the ends of the longitudinal portions 7thereof terminate slight distances apart, as shown, so as to providespaces 10, that afford a gage for positioning the rods 9 thereon. Thesespaces 10 are preferably equidistant apart in the same strip, anddifferent strips may be provided in which the spacing is, say four, six,or twelve inches, as desired.

While I have herein disclosed certain specific instrumentalities forcarrying out my invention, it is obvious that divers modificationsthereof are possible Without materially departing from the principlesinvolved. For example, the tongues may be upon one longitudinal edge ofthe strip, or the slits may be other than L-shaped, to suit convenience'in manufacture. I desire it understood, therefore, that all suchchanges are contemplated Within the scope of my invention as expressedin the appended claims.

What I claim is 2- 1. A rod spacing and tying member comprising anelongated substantially flat strip of metal provided with a plurality ofspaced tongues adjacent the margin of said strip, each tongue adapted tobe bent around a rod and project beyond the plane of said rods and stripfor disposing said reinforcing structure Within and anchoring it to thesurrounding concrete.

2. A rod spacer and tie comprising a band having rod securing meansstruck up from the body of the band at desired intervals, each adaptedto be bent to encircle and se cure the rod and extended beyond saidstrip upon the side thereof opposite said rod.

8. In a structure for reinforcing concrete construction comprisingseparate rods, a spacer and tie vfor securing said rods in placeconsisting of a strip of metal having spaced pairs of tongues displacedfrom the edges of said strip in staggered relation each tongue beingbent around its adjacent rod for securing the rod to said strip andhaving its end extended beyond the plane of said rods and strip fordisposing said reinforcing structure Within and anchoring it to thesurrounding concrete.

Signed at Chicago, county of Cook and State of Illinois, this 28rd dayof May, 1918.

CHARLES A. HANSON.

Witnesses BENJ. T. RooDHoUsE H. SLACK.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.- Washington, D. G.

